X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=components%2Fng_kernel%2FnCicPp.ml;fp=components%2Fng_kernel%2FnCicPp.ml;h=72088e48b1c4bd9b1544ce228c0590ded9056464;hp=0000000000000000000000000000000000000000;hb=f61af501fb4608cc4fb062a0864c774e677f0d76;hpb=58ae1809c352e71e7b5530dc41e2bfc834e1aef1 diff --git a/components/ng_kernel/nCicPp.ml b/components/ng_kernel/nCicPp.ml new file mode 100644 index 000000000..72088e48b --- /dev/null +++ b/components/ng_kernel/nCicPp.ml @@ -0,0 +1,173 @@ +let ppterm = + ref (fun ~context ~subst ~metasenv ?inside_fix t -> "Please, set a pp callback") +;; + +let set_ppterm f = ppterm := f;; + +let ppterm ~context ~subst ~metasenv ?inside_fix t = + !ppterm ~context ~subst ~metasenv ?inside_fix t +;; + +module C = NCic +module R = NReference + +let r2s pp_fix_name r = + try + match r with + | R.Ref (_,u,R.Ind i) -> + (match snd(NCicEnvironment.get_obj u) with + | _,_,_,_, C.Inductive (_,_,itl,_) -> + let _,name,_,_ = List.nth itl i in name + | _ -> assert false) + | R.Ref (_,u,R.Con (i,j)) -> + (match snd(NCicEnvironment.get_obj u) with + | _,_,_,_, C.Inductive (_,_,itl,_) -> + let _,_,_,cl = List.nth itl i in + let _,name,_ = List.nth cl (j-1) in name + | _ -> assert false) + | R.Ref (_,u,(R.Decl | R.Def )) -> + (match snd(NCicEnvironment.get_obj u) with + | _,_,_,_, C.Constant (_,name,_,_,_) -> name + | _ -> assert false) + | R.Ref (_,u,(R.Fix (i,_)|R.CoFix i)) -> + (match snd(NCicEnvironment.get_obj u) with + | _,_,_,_, C.Fixpoint (_,fl,_) -> + if pp_fix_name then + let _,name,_,_,_ = List.nth fl i in name + else + let name = NUri.string_of_uri u in + let name = Filename.basename name in + let name = Filename.chop_extension name in + name ^"("^ string_of_int i ^ ")" + | _ -> assert false) + with exn -> R.string_of_reference r +;; + +let trivial_pp_term ~context ~subst ~metasenv ?(inside_fix=false) t = + let buff = Buffer.create 100 in + let f = Format.formatter_of_buffer buff in + let module F = Format in + let rec aux ?(toplevel=false) ctx = function + | C.Rel m -> + (try + let name = List.nth ctx (m-1) in + F.fprintf f "%s" (if name = "_" then "__"^string_of_int m else name) + with Failure _ -> F.fprintf f " -%d" (m - List.length context)) + | C.Const r -> F.fprintf f "%s" (r2s inside_fix r) + | C.Prod ("_",s,t) -> + if not toplevel then F.fprintf f "("; + F.fprintf f "@["; + (match s with + | C.Prod ("_",_,_) -> aux ~toplevel:false ctx s + | _ -> aux ~toplevel:true ctx s); + F.fprintf f "@;→ "; + aux ~toplevel:true ("_"::ctx) t; + F.fprintf f "@]"; + if not toplevel then F.fprintf f ")"; + | C.Prod (name,s,t) -> + if not toplevel then F.fprintf f "("; + F.fprintf f "@["; + F.fprintf f "@[∀%s:@;" name; + aux ~toplevel:true ctx s; + F.fprintf f "@].@;"; + aux ~toplevel:true (name::ctx) t; + F.fprintf f "@]"; + if not toplevel then F.fprintf f ")"; + | C.Lambda (name,s,t) -> + if not toplevel then F.fprintf f "("; + F.fprintf f "@["; + F.fprintf f "λ%s:" name; + aux ~toplevel:true ctx s; + F.fprintf f ".@;"; + aux ~toplevel:true (name::ctx) t; + F.fprintf f "@]"; + if not toplevel then F.fprintf f ")"; + | C.LetIn (name,ty,t,b) -> + if not toplevel then F.fprintf f "("; + F.fprintf f "@["; + F.fprintf f "let %s:@;" name; + aux ~toplevel:true ctx ty; + F.fprintf f "@;≝ "; + aux ~toplevel:true ctx t; + F.fprintf f "@;in@;"; + (aux ~toplevel:true (name::ctx) b); + F.fprintf f "@]"; + if not toplevel then F.fprintf f ")"; + | C.Match (r,oty,t,pl) -> + F.fprintf f "@[match "; + aux ~toplevel:true ctx t; + F.fprintf f "@;return "; + aux ~toplevel:true ctx oty; + F.fprintf f "@; @[[ "; + if pl <> [] then + begin + F.fprintf f "@[%s ⇒@;" (r2s inside_fix (R.mk_constructor 1 r)); + aux ~toplevel:true ctx (List.hd pl); + F.fprintf f "@]"; + ignore(List.fold_left + (fun i t -> + F.fprintf f "@;| @[%s ⇒@;" (r2s inside_fix (R.mk_constructor i r)); + aux ~toplevel:true ctx t; + F.fprintf f "@]"; + i+1) + 2 (List.tl pl)); + end; + F.fprintf f "]@] @]"; + | C.Appl l -> + F.fprintf f "@["; + if not toplevel then F.fprintf f "("; + aux ctx (List.hd l); + List.iter (fun x -> F.fprintf f "@;";aux ctx x) (List.tl l); + if not toplevel then F.fprintf f ")"; + F.fprintf f "@]" + | C.Implicit _ -> F.fprintf f "?" + | C.Meta (n,_) -> F.fprintf f "?%d" n + | C.Sort C.Prop -> F.fprintf f "Prop" + | C.Sort C.CProp -> F.fprintf f "CProp" + | C.Sort (C.Type n) -> F.fprintf f "Type%d" n + in + aux ~toplevel:true (List.map fst context) t; + F.fprintf f "@?"; + Buffer.contents buff +;; + +let ppobj = function + | (u,_,metasenv,subst,NCic.Fixpoint (b, fl, _)) -> + "{"^NUri.string_of_uri u^"}\n"^ + "let rec "^ + String.concat "\nand " + (List.map (fun (_,name,n,ty,bo) -> + name^ " on " ^ string_of_int n ^ " : " ^ + ppterm ~metasenv ~subst ~context:[] ty ^ " :=\n"^ + ppterm ~metasenv ~subst ~context:[] ~inside_fix:true bo) fl) + | (u,_,metasenv,subst,NCic.Inductive (b, leftno,tyl, _)) -> + "{"^NUri.string_of_uri u^"} with "^string_of_int leftno^" fixed params\n"^ + "inductive "^ + String.concat "\nand " + (List.map (fun (_,name,ty,cl) -> + name^": "^ppterm ~metasenv ~subst ~context:[] ty^ " :=\n"^ + String.concat "\n" + (List.map (fun (_,name,ty) -> + " | "^name^": "^ppterm ~metasenv ~subst ~context:[] ty) + cl)) tyl) ^ "." + | (u,_,metasenv,subst,NCic.Constant (_,name,None,ty, _)) -> + "{"^NUri.string_of_uri u^"}\n"^ + "axiom " ^ name ^ " : " ^ + ppterm ~metasenv ~subst ~context:[] ty ^ "\n" + | (u,_,metasenv,subst,NCic.Constant (_,name,Some bo,ty, _)) -> + "{"^NUri.string_of_uri u^"}\n"^ + "definition " ^ name ^ " : " ^ + ppterm ~metasenv ~subst ~context:[] ty ^ " := \n"^ + ppterm ~metasenv ~subst ~context:[] bo ^ "\n" +;; + +let rec ppcontext ~subst ~metasenv = function + | [] -> "" + | (name, NCic.Decl t) :: tl -> + ppcontext ~subst ~metasenv tl ^ + name ^ ": " ^ ppterm ~subst ~metasenv ~context:tl t ^ "\n" + | (name, NCic.Def (bo,ty)) :: tl-> + ppcontext ~subst ~metasenv tl ^ + name ^ ": " ^ ppterm ~subst ~metasenv ~context:tl ty ^ + " := " ^ ppterm ~subst ~metasenv ~context:tl bo ^ "\n" +;;